Discuss Forum
1. In what ratio must a grocer mix two varieties of tea worth TK. 60 a kg and TK. 65 a kg so that by selling the mixture at TK. 68.20 a kg he may gain 10% ?
- A. 3:2
- B. 3:2
- C. 3:2
- D. 3:2
Answer: Option A
Explanation:
Hints : Let he mixes the tea in ratio x:y
Therefore the cist price = 60x + 65y
selling price = 68.20(x + y)
we know,
profit = sells price - cost price
10% of (60x + 65y) = 68.20(x + y) - (60x + 65y)
10(60x + 65y) / 100 = 68.20x + 68.20y - 60x - 65y
6x + 6.5y = 820x + 3.20 y
2.2x = 3.3 y
x/y = 3/2
x:y = 3:2
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